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SubjectRe: [PATCH v2 2/4] gcov: add support for gcc 4.7 gcov format
On 04.09.2013 16:42, Frantisek Hrbata wrote:
> The gcov in-memory format changed in gcc 4.7. The biggest change, which
> requires this special implementation, is that gcov_info no longer contains
> array of counters for each counter type for all functions and gcov_fn_info is
> not used for mapping of function's counters to these arrays(offset). Now each
> gcov_fn_info contans it's counters, which makes things a little bit easier.
>
> This is heavily based on the previous gcc_3_4.c implementation and patches
> provided by Peter Oberparleiter. Specially the buffer gcda implementation for
> iterator.
>
> v2: - removed const definition for gcov_fn_info in gcov_info
> - use vmalloc for counter values in gcov_info_dup
> - use iter buffer for gcda
>
> Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>

The patch is missing an include statement:

CC kernel/gcov/gcc_4_7.o
kernel/gcov/gcc_4_7.c: In function ‘gcov_info_dup’:
kernel/gcov/gcc_4_7.c:293:4: error: implicit declaration of function ‘vmalloc’ [-Werror=implicit-function-declaration]
kernel/gcov/gcc_4_7.c:293:20: warning: assignment makes pointer from integer without a cast [enabled by default]

With that added, it compiles and works with gcc 4.3.4 and 4.7.2 on
kernel 3.21-rc1 on s390x.

--- a/kernel/gcov/gcc_4_7.c
+++ b/kernel/gcov/gcc_4_7.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/seq_file.h>
+#include <linux/vmalloc.h>
#include "gcov.h"

#define GCOV_COUNTERS 8
--
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